revert: Restore voice.py and bot.py to last known working state (9aef846)
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
Christian Gick
65
voice.py
65
voice.py
@@ -24,16 +24,12 @@ LITELLM_KEY = os.environ.get("LITELLM_API_KEY", "not-needed")
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LK_API_KEY = os.environ.get("LIVEKIT_API_KEY", "")
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LK_API_SECRET = os.environ.get("LIVEKIT_API_SECRET", "")
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ELEVENLABS_KEY = os.environ.get("ELEVENLABS_API_KEY", "")
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DEFAULT_VOICE_ID = "JBFqnCBsd6RMkjVDRZzb" # George - warm, captivating, British male
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DEFAULT_VOICE_ID = "onwK4e9ZLuTAKqWW03F9" # Daniel - male, free tier
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VOICE_PROMPT_TEMPLATE = """Du bist ein hilfreicher Sprachassistent von Agiliton in einem Matrix-Anruf.
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Du heisst "Agiliton Assistant". Du basierst auf dem Modell {model}.
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Wenn jemand fragt welches Modell du bist, sei transparent und sage es.
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Aktuelle Zeit: {datetime}
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VOICE_PROMPT = """Du bist ein hilfreicher Sprachassistent in einem Matrix-Anruf.
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STRIKTE Regeln:
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- Antworte in der Sprache in der der Nutzer spricht
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- Antworte IMMER auf Deutsch
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- Halte JEDE Antwort auf MAXIMAL 1-2 kurze Saetze
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- Sei direkt und praezise, keine Fuellwoerter
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- Erfinde NICHTS - keine Geschichten, keine Musik, keine Fantasie
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@@ -91,7 +87,7 @@ def _build_e2ee_options(shared_key: bytes) -> rtc.E2EEOptions:
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class VoiceSession:
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def __init__(self, nio_client, room_id, device_id, lk_url, model="claude-sonnet",
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publish_key_cb=None, bot_key: bytes | None = None):
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publish_key_cb=None):
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self.nio_client = nio_client
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self.room_id = room_id
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self.device_id = device_id
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@@ -101,26 +97,20 @@ class VoiceSession:
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self.session = None
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self._task = None
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self._http_session = None
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self._caller_key: bytes | None = None
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self._caller_identity: str | None = None # "sender:device_id" format
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self._bot_key: bytes = bot_key or os.urandom(16)
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self._e2ee_key: bytes | None = None
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self._publish_key_cb = publish_key_cb
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def on_encryption_key(self, sender, device_id, key, index):
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"""Receive E2EE key from Element Call participant."""
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if not key:
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return
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identity = _make_lk_identity(sender, device_id)
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self._caller_key = key
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self._caller_identity = identity
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logger.info("E2EE key received from %s:%s (identity=%s, index=%d, %d bytes)",
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sender, device_id, identity, index, len(key))
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if key and not self._e2ee_key:
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self._e2ee_key = key
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logger.info("E2EE key received from %s:%s (index=%d, %d bytes)",
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sender, device_id, index, len(key))
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async def _fetch_encryption_key_http(self) -> bytes | None:
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"""Fetch encryption key from room timeline (NOT state) via Matrix HTTP API.
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Element Call distributes encryption keys as timeline events, not state.
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Also sets self._caller_identity from the event sender + device_id.
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"""
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import httpx
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homeserver = str(self.nio_client.homeserver)
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@@ -144,16 +134,14 @@ class VoiceSession:
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if sender == user_id:
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continue # skip our own key
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content = evt.get("content", {})
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caller_device = content.get("device_id", "")
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logger.info("Found encryption_keys timeline event: sender=%s device=%s",
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sender, caller_device)
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if caller_device:
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self._caller_identity = _make_lk_identity(sender, caller_device)
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logger.info("Found encryption_keys timeline event: sender=%s content=%s",
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sender, content)
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for k in content.get("keys", []):
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key_b64 = k.get("key", "")
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if key_b64:
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key_b64 += "=" * (-len(key_b64) % 4)
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return base64.urlsafe_b64decode(key_b64)
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import base64 as b64
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return b64.urlsafe_b64decode(key_b64)
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logger.info("No encryption_keys events in last %d timeline events", len(events))
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except Exception as e:
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logger.warning("HTTP encryption key fetch failed: %s", e)
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@@ -189,26 +177,25 @@ class VoiceSession:
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# Check timeline for caller's encryption key
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caller_key = await self._fetch_encryption_key_http()
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if caller_key:
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self._caller_key = caller_key
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self._e2ee_key = caller_key
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logger.info("Got caller E2EE key via timeline (%d bytes)", len(caller_key))
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if not self._caller_key:
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if not self._e2ee_key:
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# Wait up to 15s for key via sync handler (bot.py forwards
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# encryption_keys timeline events to on_encryption_key)
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logger.info("No key in timeline yet, waiting for sync...")
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for _ in range(150):
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if self._caller_key:
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if self._e2ee_key:
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break
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await asyncio.sleep(0.1)
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# Publish bot key so Element Call sees us as an E2EE participant
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if self._publish_key_cb:
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self._publish_key_cb(self._bot_key)
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# E2EE disabled at LiveKit level — Element Call per-participant key
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# mode not yet compatible with LiveKit Python SDK shared key mode.
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# Audio works without E2EE; Element Call still shows encryption
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# indicator based on Matrix timeline key exchange.
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# E2EE disabled — Element Call key derivation mismatch not yet resolved.
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# Audio pipeline confirmed working without E2EE.
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if self._e2ee_key:
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logger.info("Caller E2EE key available (%d bytes) — E2EE disabled pending fix",
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len(self._e2ee_key))
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if self._publish_key_cb:
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self._publish_key_cb(self._e2ee_key)
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e2ee_opts = None
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room_opts = rtc.RoomOptions(e2ee=e2ee_opts)
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@@ -227,7 +214,7 @@ class VoiceSession:
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logger.info("Track sub: %s %s kind=%s", p.identity, pub.sid, t.kind)
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await self.lk_room.connect(self.lk_url, jwt, options=room_opts)
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logger.info("Connected (E2EE=shared key), remote=%d",
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logger.info("Connected (E2EE=HKDF), remote=%d",
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len(self.lk_room.remote_participants))
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# Find the remote participant, wait up to 10s if not yet connected
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@@ -267,9 +254,7 @@ class VoiceSession:
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def _on_agent_speech(msg):
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logger.info("AGENT_SPEECH: %s", msg.text_content)
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now = datetime.datetime.now(datetime.timezone.utc).strftime("%A, %B %d, %Y %H:%M UTC")
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prompt = VOICE_PROMPT_TEMPLATE.format(model=self.model, datetime=now)
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agent = Agent(instructions=prompt)
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agent = Agent(instructions=VOICE_PROMPT)
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io_opts = room_io.RoomOptions(
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participant_identity=remote_identity,
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) if remote_identity else room_io.RoomOptions()
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